Systems, methods, apparatuses, and computer program products for efficient signaling, for example, in multi connectivity (MC) or dual connectivity (DC) scenarios with multiple packet duplicates are provided. One method may include transmitting, by a first network node, an indication over a network interface to a second network node involved in multi-connectivity. The indication indicates how to map a packet transferred over the network interface to one or more protocol entities at the second network node. The method may also include transferring the packet once over the network interface to the second network node.